FAQ
TCP-HF Question 11
Question: Is there a method of cleaning the old residual hexavalent chromates from the system baths?
Answer: Regular alkaline cleaner can be used to clean the tank. Use scotch-brite to remove the hex chromate marks and residues on the tank walls and the tank bottom. Do a thorough DI or RO rinse before charging the bath with CHEMEON TCP-HF.
Note: It is critical to remove all residual hexavalent chromates and other contaminants from the entire tank.